In this lesson, students measure the size of several galaxies to reproduce a plot of Hubble's Law. The goal of this lesson is to give students the chance to simulate the process that led to the notion that the universe is expanding, provide insight...(View More) into how this idea was reached, and inform students about the nature of our universe.Includes an extension activity, "Hubble's Law Mis-calibration." This lesson is part of the Cosmic Times teacher's guide and is intended to be used in conjunction with the 1929 Cosmic Times Poster.(View Less)

In this activity, learners explore the size and scale of the universe by shrinking cosmic scale in 4 steps, zooming out from the realm of the Earth and Moon to the realm of the galaxies. This informational brochure was designed as a follow-up...(View More) take-home activity for teen and adult audiences. It can follow informal education activities where participants have experienced related space science programming. This activity allows participants to explore ideas of size and scale in the universe at their own pace.(View Less)